Lang:G++
Edit1234567891011121314151617181920212223242526#include<iostream>#include<vector>using namespace std;int main(){int j = 0, a1, a2;vector<int> v1;int num;cin >> num;for (int i = 0; i < num; i++){cin >> a1;v1.push_back(a1);}for (a1 = 0; a1 < num - 1; a1++){int pivot = v1[a1];for (a2 = a1+1; a2 < num; a2++){if (v1[a2] < pivot)j++;}}cout << j << endl;return 0;}